usong the Jabsco hand pumps I found leaked and made a mess.
that said, they were on the boat when I bought it and may have
had some problems. had them apart and don't kn ow why.
I bought a little electric pump, on sale somewhere, like the seadog
electric pump for $20. it has really worked pretty good. small
and easy to store, not too messy, and cheap. if it goes, I don't
have a pile invested. mny engine talkes 9 liters of oil, so I buy
it bythe gallon or 5 liters, and save the jugs for the next oil change.

Rickf

PS excuse typos, a liter of sangria